From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:46965 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753263AbcJZHeo (ORCPT ); Wed, 26 Oct 2016 03:34:44 -0400 Subject: Patch "parisc: Fix kernel memory layout regarding position of __gp" has been added to the 4.8-stable tree To: deller@gmx.de, gregkh@linuxfoundation.org Cc: , From: Date: Wed, 26 Oct 2016 09:34:39 +0200 Message-ID: <1477467279173109@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled parisc: Fix kernel memory layout regarding position of __gp to the 4.8-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: parisc-fix-kernel-memory-layout-regarding-position-of-__gp.patch and it can be found in the queue-4.8 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From f8850abb7ba68229838014b3409460e576751c6d Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Sun, 9 Oct 2016 11:12:34 +0200 Subject: parisc: Fix kernel memory layout regarding position of __gp From: Helge Deller commit f8850abb7ba68229838014b3409460e576751c6d upstream. Architecturally we need to keep __gp below 0x1000000. But because of ftrace and tracepoint support, the RO_DATA_SECTION now gets much bigger than it was before. By moving the linkage tables before RO_DATA_SECTION we can avoid that __gp gets positioned at a too high address. Signed-off-by: Helge Deller Signed-off-by: Greg Kroah-Hartman --- arch/parisc/kernel/vmlinux.lds.S | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) --- a/arch/parisc/kernel/vmlinux.lds.S +++ b/arch/parisc/kernel/vmlinux.lds.S @@ -89,8 +89,9 @@ SECTIONS /* Start of data section */ _sdata = .; - RO_DATA_SECTION(8) - + /* Architecturally we need to keep __gp below 0x1000000 and thus + * in front of RO_DATA_SECTION() which stores lots of tracepoint + * and ftrace symbols. */ #ifdef CONFIG_64BIT . = ALIGN(16); /* Linkage tables */ @@ -105,6 +106,8 @@ SECTIONS } #endif + RO_DATA_SECTION(8) + /* unwind info */ .PARISC.unwind : { __start___unwind = .; Patches currently in stable-queue which might be from deller@gmx.de are queue-4.8/parisc-fix-kernel-memory-layout-regarding-position-of-__gp.patch queue-4.8/parisc-increase-initial-kernel-mapping-size.patch queue-4.8/parisc-increase-kernel_initial_size-for-32-bit-smp-kernels.patch queue-4.8/parisc-fix-self-detected-cpu-stall-warnings-on-mako-machines.patch